哇酷®开发者社区(WhyCan® Forum)

看到论坛里面有好多人问， 我也查了好多资料， 最终根据https://whycan.cn/t_3138.html 解决， 单独拿出来， 方便大家搜索

如图所示，这里应该有个m25p80开头的，但是这里没有，在卡住的上边有一行
[ 1.294661] ALSA device list:
[ 1.297627] #0: Loopback 1

因此开启

次进入配置界面:make ARCH=arm menuconfig
Device Drivers --->Block devices --->
[v]Loopback device support，勾选，

然后

这里m25p80， 未识别的ID， 这里我买的licheepi SPI FLASH是 xt25f128b 的， 因此在 drivers/mtd/spi-nor/spi-nor.c里面添加

{ "xt25f128b", INFO(0x0b4018, 0, 64 * 1024, 256, 0) },

后来提示
[ 0.905624] m25p80 spi0.0: found xt25f128b, expected w25q128
[ 0.911440] m25p80 spi0.0: xt25f128b (16384 Kbytes)

然后，添加dts：

&spi0 {
pinctrl-names = "default";
pinctrl-0 = <&spi0_pins_a>;
status = "okay";
spi-max-frequency = <60000000>;
flash: xt25f128b@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "winbond,w25q128,xt25f128b", "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <60000000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;

partition@0 {
label = "u-boot";
reg = <0x000000 0x100000>;
read-only;
};

partition@100000 {
label = "dtb";
reg = <0x100000 0x10000>;
read-only;
};

partition@110000 {
label = "kernel";
reg = <0x110000 0x400000>;
read-only;
};

partition@510000 {
label = "rootfs";
reg = <0x510000 0xAF0000>;
};
};
};
};

最后：

[ 0.918276] Creating 4 MTD partitions on "spi0.0":
[ 0.923197] 0x000000000000-0x000000100000 : "u-boot"
[ 0.930860] 0x000000100000-0x000000110000 : "dtb"
[ 0.938055] 0x000000110000-0x000000510000 : "kernel"
[ 0.945687] 0x000000510000-0x000001000000 : "rootfs"

成功！

最近编辑记录 h8416 (2020-07-07 19:33:39)